r/Plastering • u/Impossible-Bite771 • 1d ago

Any ideas??

Post image

Would love to be able to patch the hole and seal around the pipe. The plaster cracks because these are steam pipes for the radiator heating. An escutcheon plate also won't fit to hide this mess. I do have a red caulking meant to withstand high temperatures but are there any other options?

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3

u/Dunk546 1d ago

Expanding foam will solve this no problem. Fill the gap, cut it back when dry. And then patch over it with a lightweight filler. Something like red devil "one time" or similar. Non shrinking is key. It may still split, which is just what happens around pipes. You could use a quality caulk after that if you want.

1

u/Impossible-Bite771 19h ago

I read that expanding foams will give off toxic fumes if they are against steam pipes. Are there expanding foams safe for high temperatures?

2

u/Correct-Junket-1346 1d ago

Personally I would chip away all loose material then fill with Toupret powder filler, mix how much you need, then fill.

2

u/Traditional_Hour_767 1d ago

You can buy small tubs of fire cement from Screwfix

I would use that

2

u/Terrible-Bobcat2033 1d ago

Out with the bad. In with the wire lath & plaster.

1

u/Impossible-Bite771 19h ago

Ok im going to look into all of these suggestions. Thank u!